Ventilator.



F. R. & C. J. WEBER.

VENTILA'IOR.

APPLICATION FILED PEB.13, 1912. 1,106,123. atented Aug. 4, 1914,

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WITNEESEE) F. R. & C. J. WEBER.

VENTILATOR. APPLICATION FILED 213.13, 1912.

Patented Aug. 4, 1914.

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INVENTORS Homeva THE NORRIS PETERS CO.. PHOTO-LITHQ. WASHINGTON, D U.

T: FiATES PATENT FFTCE.

FRANK R. WEBER AND CHRISTOPHER J. WEBER, OF ST. PAUL, MINNESOTA.

VENTILATOR.

To all whom it may concern:

Be it known that we, FRANK R. WEBER and Onms'rornnn J. WEBER, citizens of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented certain new and useful Improvements in Ventilators, of which the following is a specification.

Our invention relates to improvements in ventilators adapted particularly, although not exclusively, for use upon railway carriages or other moving cars, its objects being, among other things, to provide a ventilator wherein the inrush of air from without is utilized to draw the foul air from the interior of the chamber, wherein the cinders and dust shall be effectually excluded from the interior of the chamber, and which shall be so constructed as to shed water and avoid the lodgment of snow, ice, or cinders in or upon it.

With these and other objects in view the invention consists in the construction, combination, and arrangement of parts hereinafter described and claimed.

In the accompanying drawings forming part of this specification, Figure 1 is a perspective view of a fragment of the exterior of a railway car showing the ventilator secured upon the outside of the clear-story; Fig. 2 is a perspective view of a fragment of window sash showing the ventilator sesured upon the outside of the bottom rail; Fig. 3 is a front view of the ventilator; Fig. 4: is a side view thereof; Fig. 5 is a horizontal section through the ventilator on line a2a2 of Fig. 3; Fig. 6 is a perspective view of one of the rear ventilating slats; and Fig. 7 is a perspective view of one of the intermediate slats.

In the preferred embodiment of the invention shown in the drawings the ventilator has a top plate 2 formed at its rear or base with an upturned securing flange 3, and a bottom plate 4 formed at its rear or base with a downturned securing flange 5. The top and bottom plates both slope clownwardly and forwardly from their rear or base toward their free ends, as best shown in Fig. 4, in order to shed water and pre vent snow, cinders, and dirt from lodging upon the top plate, or upon the upper face of the lower plate, as well as to prevent water, snow, cinders, and dirt from working Specification of Letters Patent.

Application filed February 13, 1912.

Patented Aug. 4, 1914:.

Serial No. 677,279.

back through the ventilator into the interior of the chamber to be ventilated. Thus the upper flange 3 will stand at an obtuse angle with the top plate 2 while the lower flange 5 will stand at an acute angle with the lower plate.

Secured between the top and bottom plates is a deflector 6 of general triangular shape having one apex positioned centrally at the front of the ventilator, and opposite thereto a base wall 7 in line with the flanges 3 and 5, whereby to close it off from the interior of the chamber to be ventilated. At a point about midway between the base and the apex, the sides of the deflector are turned sharply rearwardly and inwardly, as shown at S, and then forwardly in a broken line as at 9 to the apex. It is immaterial whether this broken line he made up of one or more straight lines, as shown in the drawings, or whether it be a curve with more gradually changing direction, so long as the general direction of the line shall be in an inward and forward bend from the part 8 to the apex. Also secured between the top and bottom plates, on each side of the central deflector A, are a series of substantially upright ventilating slats which extend in a general direction from the sides of the ventilator inwardly and forwardly toward the central deflector, but which terminate short thereof, so as to leave an air passage 6 between their inner ends and the deflector. These slats are preferably positioned so that each succeeding slat, counting from the front to rear, is pitched forwardly slightly more than the one in front of it. The forward slats 10 stand substantially in line with the oppositely beveled front edges of the top and bottom plates of the ventilator, the succeeding plates 11 and 12 extend past the inturned portions 8 of the deflector sides and into the bend formed by the broken line 9, while the shorter slats 13 and let extend toward the portion of the deflector sides at the rear of the bend 8. The rear slats 14. are preferably formed on their outer sides with a securing flange 15 bent to stand in alines ment with the flanges 3 and 5 of the top the front.

parts are preferably made of sheet metal. They are soldered or otherwise suitably secured together.

In Fig. l we have shown the ventilator secured in place about the opening of one of the clearstory windows of a railway car, while in Fig. 2 we have shown it secured to the bottom rail of the window sash 16. The rail is formed with two openings or apertures 17 cut therethrough in registration with the openings 18 between the ends of the base wall 7 of the deflector and the flanges 15 of the plates 14. When it is secured to the frame about a clearstory window or other ventilating opening, such as 17, the air passages 6 between the central. deflector and the ends of the ventilating slats will communicate directly with the interior of the car or other chamber through the openings 18. The ventilator is secured to the frame about the ventilating opening by means of screws 19 passing through the flanges 3, 5, and 15.

When the ventilator is used upon a car, the forward motion of the car will cause an inrush of air into the spaces or ports between the ventilating slats. When the air current meets the deflector A it will be directed by it along the passage 6, from which it will emerge at the front of the ventilator through the port 20 between the apex and the front slat 10. It will carry with it any snow, dust, cinders, or water which may be already in the ventilator or which may enter with the air. Thus none of these foreign matters can work back through the opening 18 into the car-chamber. In order further to prevent any back draft into the car, each of the slats from front to rear is pitched at a greater forward angle than the slat in front of it, whereby the air entering between any two of the slats will be struck by a more forwardly directed current fro-m the rear. Furthermore, the air current entering between the slats will suck the foul air from the interior of the car through the opening 18 and dis charge it through the front ports 20.

If the ventilator is upon a no11moving structure, such as a house, or a car at rest, and the air current enters the ventilator through the front ports 20 instead of the side ports, the entering air will be deflected by the bends 8 and 9 of the deflector into e orts between the slats 12 and 13 and be discharged at the side, instead of passing back into the chamber through the passages 6. Thus the air entering the ventilator at the front is discharged at the sides, while the air enterin at the sides is discharged at In either case it will draw the foul air from the interior of the chamber, and will not blow back into the chamber so that the chamber will be kept free from drafts, and also from dust, cinders, snow,

and other impurities.

l/Ve do not herein limit ourselves to slats or deflector walls which shall have fiat or plane surfaces, so long as the slats or walls extend in the general direction described, nor do we limit ourselves to a ventilator which has ventilating slats on both sides of the deflector, although such arrangement is always more eiiicient, and upon a car intended to be moved in either direction is necessary.

We claim as our invention:

1. A ventilator having at the rear a pair of spaced foul air inhaust ports, and at each side a plurality of forwardly and inwardly extending side ports, and having also a central opening at the front, and a triangular deflector havingone of its apices adjacent to said front port opening, whereby to divide said opening into two'parts, said deflector being so positioned as to leave an air-passage along each of its side walls leading from the adjacent inhaust port past the side ports on that side to the front port, said side walls being formed intermediately of their length with an inward bend adapted to direct air currents entering through the front 'port into the side ports.

2. A ventilator having a foul air inhaust port at the rear, andv an exhaust port at the front, a plurality of side ports extending forwardly and inwardly from the side of the ventilator and a deflector wall extending from the inner side of the inhaust port forwardly past the inner ends of the side ports to the front po-rt,but spaced apart from the mouths of said side portsso as to leave a common air passage for the inhaust port andside ports extending from the inhaust port past the mouths of the side ports to the front port whereby to cause the air currents entering at the sides to draw and drive the foul air out through said passageway.

8. A ventilator having a foul air inhaust port at the rear and a port at the front, a plurality of spaced ventilating slats extending inwardly from the side of the ventilator so as to form side ports, and a deflector wall extending from the inner side of the inhaust port forwardly and inwardly past the mouths of the side ports to the front port, whereby to form a common passageway for the inhaust port and the side ports, and means for deflecting air entering at the front port out of said passageway and into one of the side ports.

4. A ventilator having a foul air inhaust port at the rear and a port at the front, a plurality of ventilating slats extending inwardly from the side of the ventilator so as to form side ports, and a deflector wall extending from the inner side of the inhaust port forwardly and inwardly past the mouths of the side port to the front port whereby to form a common discharge passageway for the foul air entering the rear of the ventilator and the air currents entering at the sides, said wall being formed intermediate of its length with a bend adapted to deflect the air currents enteringthrough the front port into one of the side ports.

5. A ventilator having at the rear a pair of spaced foul air exhaust ports, and at each side a plurality of forwardly and inwardly extending side ports and having also an opening at the front, and a triangular deflector having one of its apices adjacent said front port-opening whereby to divide said opening into two ports, said deflector being so positioned as to leave an air passage along each of its side walls leading from the adjacent exhaust port past the side ports on that side to the front port.

In testimony whereof we affix our signatures in presence of two witnesses.

FRANK R. WEBER. CHRISTOPHER J. WEBER. Witnesses ARTHUR P. Lo'rrmor, H. SWANSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). G. 

